Waterproofed textile material and process of making same.



UNITED STAT WATER-PROOFING (10., INCORPORATED,

PORATION 0F VIRGINIA.

0F NORFOLK, VIRGINIA, A GOR- WATERPROOFED TEXTILE MATERIAL AND PROCESS OF MAKING SAME.

No Drawing.

To all whom it may concern:

Be it known that I, ROBERT ATHnLs'rAN Mane,- a citizen of the United States, residing at Ghent, Norfolk, iii the county of Xorfolk and State of Virginia, have invented certain new and useful Improvements in \Vaterproofed Textile Material and Processes of Making Same, of which the following is a specification.

The )lGSGIlt invention relates to the treatment of materials composed of textile fibers, such as fabrics, rope, yarn and the like, by impregnating the same with a treating medium containing paraffin, naphthalene and diatomaceous earth, to which rosin may be added if desired.

The invention includes the treatment of all materials composed of textile fibers such as duck, canvas, rope, cordage, nets for fishing, hammocks, bags andbagging, and I desire to call attention to the fact that these materials may be treated either in the finished form, or in the form of the yarn or small string, from which the materials are to be made. The textile material also can be treated, if so desired, in the form of finished articles, that is to say, articles made of fabric or cordage.

In carrying out my process the bath employed may consists of parafiin, 100 parts; naphthalene, 2 to 5 parts; diatomaceous earth, 2 to 10 parts; to which rosin 3 to 10 parts; Paris green 1 to 2 parts; and any dye soluble in the menstruum, in suitable quantity may be added if desired, for giving special effects. The addition of these last three being optional. The proportions may also be varied, to suit particular conditions.

The material to be treated may be in the air-dry ondition, containing 5 to 15% of moisture, although for securing .heavy impregnation it is advisable sometimes to use material containing more moisture than this.

I call attention to the fact that rope and other materials treated with the mixture varieties of tar appear to act injuriously on.

'the tentile fibers, possibly on account of the corrosive tar acids or other corrosive ma- Specification of Letters Patent.

Patented Dec. 22, 1914.

Application filed January 13, 1914. Serial No. 811,911.

terials contained therein. A further advantage in the use of this mixture consists in that the rope or other material when so treated willfloat, although its weight has been somewhat increased, but the exclusion of the water by the material which I employ prevents the rope from absorbing water, and thereby becoming heavy enough to sink. This is a material advantage in ropes used for towing lines, casting lines, and the like.

The materials when treated according to this process are preserved against the action of dry rot, marine insects, (teredo, limnoria, barnacles, etc.,) fish slime, and the like, all of which cause the materials mentioned to deteriorate very rapidly. The material is rendered impervious to water, acids and the like.

The naphthalene employed acts as a carrier or assistant, to cause the paraffin, and the diatomaceous earth carried thereby, to readily enter the pores and interstices of the fibers. Paraffin alone will not readily enter the pores of fibrous materials such as those herein employed, but will merely form a surface coating and will not to any great eX- tent permeate the fibers themselves.

The material being treated may be submerged in the bath, while said bath is maintained at a temperature of somewhat above the boiling point of water, say 230 to 250 F., and the bath may be allowed to cool almost down to the'solidifying point of the bath if a heavy impregnation is desired, or may be allowed to cool only a few degrees, if a light impregnation is desired.

By the use of the oil soluble dye I can produce any desired color, in the material treated, which will not wash out, and in most instances, will not fade away when exposed to the action of sea water, sunlight, and other conditions under which colors ordinarily fade more or less.

I call particular attention to the use of this process in the treatment of bags for holding cement, fertilizer, and various other materials, or the fabric from which said bags are to be made. I

The light impregnation of the fabric or other material maybe produced by treating fabric which is in its air dry. condition, whilethe use .of fabric or the likecontaining more moisture than this leads to a heavier impregnation suitable for other purposes. The material may be soaked in water, prior to the immersion in the bath, if desired. This process also finds special application in the treatment of canvas or duck for life preservers, or other uses, such as tents, sails, awnings and the like. I

The treatment of life preservers comprising blocks of wood in a canvas cover or casing is specifically claimed'in my copending applications Nos. 811,909 and 811,910, filed concurrently herewith.

regulating the amount of the preservative,'impermeablizing solution, I can produce products which are quite stifi', or very flexible.

I desire to call attention to the absence of volatile solvents from the treatingv bath, since the evaporation of these solvents, heretofore proposed in impregnating materials of this character, leaves the material more or less porous, and carries the bulk of the treating agent to the surface of the fabric, etc., under treatment, leaving less of the impregnating or filling agent in the inner parts of the materials. The use of rosin in the bath is especially to be recommended, in

the manufacture of belting since it is necessary to prevent the slipping of belts on the pulleys, although its use is optional for some articles.

Materials comprising both fabric and rope, e. 9. reinforced belts, tents and the like may be treated by this process, and in the case of stitched articles, bags, etc., the thread is-treated as well as the fabric. The use of Paris green is especially recommended in treatingfish nets, ropes which are kept for long periods in salt water, ballast bags, and the like. This substance does not enter the minute interstices of the material under treatment, to as great an extent as does the diatomaceous earth.

The treatment of textile materials with a mixture including paraflin, rosin and di-- atomaceous earth is described and claimed in my copending application, Serial No. 811,912, filed concurrently herewith,

What I claim is 1. A process of treating fabric and cordage, which comprises impregnating the same with a preservative, waterproofing, imper-.

meablizing agent, comprising diatomaceous earth and an insoluble carrier, which is liquid at temperatures near the boiling point of water, but' solid at ordinary temperatures.

2. A process of treating fabric and cordage, which comprises impregnating the same with a preservative, waterproofing, mpermeablizing agent, comprising diatomaceous earth, and an insoluble, non-reactive carrier, which 1s liquid at temperatures near the boiling point of water, butfsolid at the 0rdinary temperature.

3. A process of treating fabric and cordage, which'comprises impregnating the same with a preservative, waterproofing, imperineablizing agent, comprising diatomaceous earth and an insoluble, fluent hydrocarbon carrier.

4- A process of treating fabric and cordage, which comprises impregnating the same with a preservative, waterproofing, impermeablizing agent, comprising diatomaceous earth and paraffin.

5. A process of treating fabric and cordage, which comprises impregnating the same with a preservative, waterproofing, impermeablizing agent, comprising diatomaceous earth and a carrier comprising parafiin and naphthalene 6. A process of treating fabric and cordage, which comprises impregnating the same with a preservative, waterproofing, impermeablizing agent, comprising diatomaceous earth, and a carrier comprising parafiin, rosin, and naphthalene. t 7. A process of treating textile materials, which comprises impregnating the same with a preservative, water-proofing, impermeablizing agent, comprising diatomaceous earth and Paris green, and a carrier comprising parafiin, rosin and naphthalene.

8. A process of treating an article composed of textile material, which comprises immersing the same in a bath comprising paraflin and a solid material of suflicient fineness to enter the pores of said textile material, at a temperature somewhat above 212 F., and thereafter treating the same with a bath containing molten parafiin, at a temperature lower than that used in said first step.

9. A process of treating an article com posed of textile material, which comprises immersing the same in a bath comprising parafiin naphthalene and a solid material of suflicient fineness to enter the pores of said textile material, at a temperature somewhat above 212 F., and thereafter treating the same with a bath containing molten parafiin, at a temperature lower than that used in said first step.

10. .A process of treating fabric and cordage, which comprises immersing the same in a bath comprising paraflin, naphthalene, rosin, and a solid material of suflicient fineness to enter the pores, at a temperature somewhat above 212 F., and thereafter treating the same with a bath comprising paraffin at a temperature lower than that 12. A process of treating textile materials, which comprises impregnating the same with a preserving material, including a material which is solid at ordinary temperatures, but has a melting point below the boiling point of Water, a solid material of a degree of fineness sufficient to enter the pores and interstices of said textile material, and a conveying agent.

13. A process of treating textile materials, which cimprises impregnating the same with a bath comprising parafiin, naphthalene and diatomaceous earth. at a temperature above 212 F.

14. A process of treating textile materials, which comprises impregnating said materials with a. bath comprising paraflin, naphthalene, rosin and diatomaceous earth, at a temperature above 212 F.

15. A process of treating textile materials, which comprises subnierging the same in a bath comprising pa'raiiin, naphthalene, rosin, diatomaceous earth and Paris green, at a temperature above 219."- F.

16. An article composed of textile material impregnated vvith a filling agent comprising diatomaceous earth and a hydrocarbon body.

l7. Anarticle composed of textile material impregnated With a filling agent comprising diatomaceous earth and a vehicle including paraffin.

18. An article composed of textile material impregnated with a filling agent comprising diatomaceous earth and a vehicle in cluding paraflin and naphthalene.

19. An article composed of textile material impregnated with a filling agent comprising diatolnaceous earth and a vehicle including paraitin, naphthalene and rosin.

20. A unitary article comprising in its structure, both fabric and cordage, said article being impregnated with a filling agent comprising diatomaceous earth and a hydrocarbon body.

21. A textile material impregnated with a filling agent comprising an inorganic, solid, hard body of sufiicient fineness to enter the pores and interstices of said material, a hydrocarbon body having a melting point belovv 212 F., but solid at ordinary temperatures, and a material soluble in said hydrocarbon body, having the property of aiding the impregnation of said textile material,

with said filler.

'22. A textile material impregnated with a filling agent comprising diatomaceous earth and a hydrocarbon having a melting point below 212 F., said textile material having a coating including a solid poisonous body.

In testimony whereof I have a-tfixed my signature in presence of two Witnesses.

ROBERT ATHELSTAN MARE. lVitnesses J ANEY HOPE Mann, A- B. FOSTER. 

